WR

William Royer

DU Duff-Norton: 1 patents #2 of 7Top 30%
Overall (All Time): #4,042,526 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4477107 Rotating joint with separated bearings and seals George R. Ferguson 1984-10-16